What is the best alternative to Convex?

Supabase Realtime is the top-rated alternative to Convex. It offers Integrated with Supabase DB and Postgres RLS on realtime events, and is freemium starting at $25/month (included in Supabase)/month.

Is there a free alternative to Convex?

Yes — Supabase Realtime is a freemium alternative to Convex. Integrated with Supabase DB

Why do developers switch from Convex?

Common reasons to switch from Convex: Full platform lock-in; Custom query language; Not for existing backends.

Best Convex Alternatives(2026)

We compared 3 alternatives to Convex — so you can find the best option for your needs and budget.

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You're replacing

Convex

freemium

Backend application platform with live queries

Starts at $25/month

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Common reasons to switch

Full platform lock-inCustom query languageNot for existing backends

Supabase Realtime

freemium

From $25/month (included in Supabase)

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Supabase Realtime broadcasts Postgres database changes over WebSockets, with support for broadcast and presence channels.

Pros

+Integrated with Supabase DB

+Postgres RLS on realtime events

+Good free tier

Cons

−Tied to Supabase

−Less flexible than Ably for non-Postgres use cases

Postgres CDCBroadcast channelsPresenceRow-level security filtersClient SDKs

Pusher

freemium

From $49/month

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Pusher provides hosted realtime APIs (WebSockets) for adding live features to web and mobile apps.

Pros

+Simple to integrate

+Battle-tested reliability

+Multiple language SDKs

Cons

−Expensive for high connection counts

−No self-hosted option

−Limited message history

WebSocket channelsPresence channelsPrivate channelsWebhooksClient libraries

Ably

freemium

From $0 (free 6M messages/month)

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Ably is a realtime messaging platform with guaranteed delivery, ordering, and a global edge network.

Pros

+Message ordering guaranteed

+Generous free tier

+Global edge network

Cons

−More complex than Pusher

−Pricing can be hard to predict

−Docs could be clearer

Pub/SubPresenceMessage historyPush notificationsServer-sent events

Compare Convex Head to Head

Convex vs Supabase Realtime Convex vs Pusher Convex vs Ably